Experts in the Construction Industry
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PRINCIPAL CONTRACTOR & CONSTRUCTION MANAGER

Assix Limited deliver construction projects for clients across the UK.

Our industry expertise helps end-users and developers realise their new build and refurbishment projects across a range of sectors.

ASSIX ARE A TEAM OF CONSTRUCTION EXPERTS WITH THE DRIVE AND VISION TO DELIVER SUCCESSFUL BUILDING PROJECTS

  • NEW BUILD | REFURBISHMENT

  • DESIGN & BUILD | TRADITIONAL | CM

  • EDUCATION | COMMERCIAL | RETAIL | RESIDENTIAL | TRANSPORT

With over 60 years of combined experience in the construction industry, Assix has the skills and knowledge to deliver a wide variety of construction projects. We work on projects ranging from £100k to £10m in value and understand the different complexities of both new build and refurbishment works.

Assix have a strong track record of delivering multiple major commissions simultaneously and operating within challenging live environments. We apply the same level of professionalism and attention to detail to each project ranging from fast-track, multi-site frameworks to high-specification landmark developments.

We maintain a competitive edge for open market tenders as well as having the professional and personable approach that builds lasting client relationships. Our small business approach ensures clients get the benefit of working with construction industry experts with the motivation to make every project a success.

Our people are the heart of our business and together we strive to be a sustainable and responsible principal contractor within the construction industry.

“We believe that a business can be passionate about people as well as profit. ASSIX’s mission is to provide our customers with a fantastic service whilst fulfilling our collective vision. We value training and development, and want our team to enjoy their job and see work is a real positive part of their lives. ASSIX is more than just a construction company. ASSIX is about giving fresh challenges and opportunities to our people. Vision, passion and collective enjoyment drives us to continually improve and deliver.”

➤ OUR LOCATION

SHEFFIELD OFFICE

Suite F6 & F7

Epic House

18 Darnall Road

Sheffield

S9 5AB

☎ CONTACT

0114 321 2928

TEAM@assix.co.uk

SERVICES & EXPERTISE

PRINCIPAL CONTRACTOR

NEW BUILD | REFURBISHMENT

DESIGN & BUILD | TRADITIONAL

JCT | NEC

Our team has 15 years experience operating as a principal contractor nationwide and across a variety of sectors. We are experts in planning, managing and safely delivering construction projects of any value.

We work proactively with clients from tender stage through to completion; managing design, procurement, delivery and handover of new build and refurbishment works. Employing a flexible approach yet with a core refined process for delivery, we enjoy putting our knowledge and experience into action and providing clients with the best possible project.

CONSTRUCTION MANAGeMENT

SPEED | AGILITY | VALUE

PROJECT RECOVERY

TRANSPARENCY

Construction Management allows Assix to partner with clients who benefit from our experience of managing complex construction projects. Integrating a construction manager leads to a more agile and flexible approach and means that all opportunities can be explored throughout the project. Change is inevitable in complex projects, and construction management ensures that changes are embraced at any stage of delivery.

Faster Programme - simultaneous Design, Procurement & Construction.

Opportunity & Agility - Incorporate changes at any stage of the project with minimal impact.

Supply Chain Value - Incorporate buying power across multiple projects with a direct contractual link.

Quality Control - Working in partnership to ensure each stage of the works are completed to the right standards.

PROJECT MANAGEMENT & EMPLOYERS AGENT

We work alongside client's to support and advise on challenging projects and roll-outs. Our team of project managers have extensive experience in a range of sectors and from project inception to completion and aftercare.

Our team of Quantity Surveyors have combined experience of over 30 years across a range of construction projects and can offer a detailed and reliable service in the preparation of project cost plans, estimates for sub-contract services and support across the tender process.

ESTIMATING & COST MANAGEMENT

SUB-CONTRACTOR SUPPORT SERVICES

With a range of experience in delivery, commercial management and health and safety we can assist sub-contractors in the delivery and management of their works and offer advice to support their growth. Our services include estimating, programming & planning, preparation of health and safety documentation, cost management & interim applications, final accounts and dispute management.

LATEST NEWS

Latest News
ASSIX Complete Facade Refurbishment Project
ASSIX Complete Facade Refurbishment Project

ASSIX have recently completed the facade refurbishment at The Geography Building for the University of Sheffield.

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ASSIX Achieve ISO 9001, 14001, 45001 Accreditation
ASSIX Achieve ISO 9001, 14001, 45001 Accreditation

ASSIX are delighted to have been awarded UKAS accredited ISO accreditation from the British Assessment Bureau for:

Quality Management ISO 9001

Environmental Management ISO 14001

Health & Safety Management ISO 45001

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ASSIX Complete The Refurbishment of 9 Northumberland Road
ASSIX Complete The Refurbishment of 9 Northumberland Road

ASSIX have recently completed the refurbishment of this Victorian villa for the University of Sheffield.

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ASSIX Begin Works On Link Bridge Refurbishment
ASSIX Begin Works On Link Bridge Refurbishment

ASSIX have commenced works at the Nano Link Bridge project for the University of Sheffield.

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ASSIX Commence Listed Wall Reconstruction Project
ASSIX Commence Listed Wall Reconstruction Project

ASSIX are delighted to have commenced work on the reconstruction of a listed retaining wall at Bartolome House for The University of Sheffield.

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ASSIX Awarded Heritage Railing Replacement Project
ASSIX Awarded Heritage Railing Replacement Project

ASSIX are delighted to have been awarded works to complete a heritage railing replacement project for the University of Sheffield.

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ASSIX Handover Works at Bartolome House
ASSIX Handover Works at Bartolome House

ASSIX have successfully completed works at Bartolome House to install new bespoke rooflights and extensive masonry repointing for the University of Sheffield.

Read More →
ASSIX Complete Ripley Locker Building
ASSIX Complete Ripley Locker Building

ASSIX have successfully completed a new build locker block for Derbyshire Police. The project provide a new circa 300m2 facility on their existing site.

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ASSIX Handover Hadfield Roofing Project
ASSIX Handover Hadfield Roofing Project

ASSIX have completed works to re-roof three areas of the Sir Robert Hadfield CBE Building for the Univesity of Sheffield.

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ASSIX Complete Resurfacing at Maxfield Avenue
ASSIX Complete Resurfacing at Maxfield Avenue

ASSIX have handed over our works at Maxfield Avenue with completion of the resurfacing & retaining wall works for the University of Sheffield.

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ASSIX Complete Nuclear AMRC Reception Refurbishment Project
ASSIX Complete Nuclear AMRC Reception Refurbishment Project

ASSIX have successfully handed over works at the Nuclear AMRC building having carried our a full refurbishment of the reception area.

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ASSIX Awarded Rooflight Replacement Project in Sheffield
ASSIX Awarded Rooflight Replacement Project in Sheffield

ASSIX have been awarded works to complete the replacement of several large rooflights to the Bartolome House building for the Univesity of Sheffield.

Read More →
ASSIX Awarded Reception Refurbishment at NAMRC Building
ASSIX Awarded Reception Refurbishment at NAMRC Building

ASSIX have been awarded works to complete reception refurbishment at the Nuclear AMRC building for the University of Sheffield.

Read More →
ASSIX Awarded Resurfacing & Retaining Wall Project in Sheffield
ASSIX Awarded Resurfacing & Retaining Wall Project in Sheffield

ASSIX have been awarded works to complete retaining wall replacement and new access road works for the University of Sheffield.

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ASSIX Commence Re-Roofing Project at The Hadfield Building
ASSIX Commence Re-Roofing Project at The Hadfield Building

ASSIX have begun work on the University of Sheffield’s Hadfield Building to complete a 5 month re-roofing project.

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ASSIX Complete Kroto Lab Project for The University of Sheffield
ASSIX Complete Kroto Lab Project for The University of Sheffield

ASSIX have successfully completed a refurbishment project for the University of Sheffield at the Kroto Research Institute. The project involved alterations to the layout to remodel the area for a 3D printer facility.

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ASSIX Appointed to Ripley Police Station Locker Room Project
ASSIX Appointed to Ripley Police Station Locker Room Project

ASSIX are pleased to have secured our first project for Derbyshire Police for the construction of a new locker room facility at their Ripley Police Station.

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ASSIX To Construct New Eco House in Sheffield
ASSIX To Construct New Eco House in Sheffield

ASSIX have been appointed to construct a new-build eco-house in Sheffield.

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ASSIX Complete Roofing Project for The University of Sheffield
ASSIX Complete Roofing Project for The University of Sheffield

ASSIX have recently completed works to re-roof The Broad Lane Block for the University of Sheffield.

Read More →
Assix Achieve CIOB Chartered Building Company Accreditation
Assix Achieve CIOB Chartered Building Company Accreditation

Assix are proud to have been accredited by the CIOB as a Chartered Building Company. We believe this demonstrates our professional and knowledgeable approach to our projects and continued desire to improve.

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Assix Appointed to Phase 2 of Knights House Development
Assix Appointed to Phase 2 of Knights House Development

Assix appointed to Phase 2 of Knights House project in Sutton Coldfield.

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ASSIX TO COMPLETE CAR PARK EXTENSION IN BRADFORD
ASSIX TO COMPLETE CAR PARK EXTENSION IN BRADFORD

Assix Construct appointed as Construction Managers to complete car park extension project for Univar in Bradford.

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Assix Appointed Construction Managers for £3m Office to Residential Conversion in Sutton Coldfield
Assix Appointed Construction Managers for £3m Office to Residential Conversion in Sutton Coldfield

Assix Construct appointed Construction Managers for Knights House development in Sutton Coldfield.

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Assix Awarded Office Refurbishment Project in Wilmslow
Assix Awarded Office Refurbishment Project in Wilmslow

Assix are delighted to be appointed to undertake office refurbishment works for Univar Limited at their Wilmslow Offices.

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Assix Appointed to Undertake Shell Refurbishment at Deacon House
Assix Appointed to Undertake Shell Refurbishment at Deacon House

Assix are pleased to have been awarded the phase 1 refurbishment of Deacon House, a city centre project to upgrade existing offices in Sheffield.

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Assix Opens The Doors to New Offices at 'The Coach House'
Assix Opens The Doors to New Offices at 'The Coach House'

Assix are delighted to have moved in to their new office space in Wakefield. The office space provides a great working environment for our small team of staff.

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Projects
UNIVERSITY OF SHEFFIELD | GEOGRAPHY BUILDING
Education
JCT, Live Environment, University of Sheffield, Principal Contractor, Innovative, Mechanical, Electrical, Glazing, Curtain Walling, Windows, Facade
UNIVERSITY OF SHEFFIELD | GEOGRAPHY BUILDING
Education
JCT, Live Environment, University of Sheffield, Principal Contractor, Innovative, Mechanical, Electrical, Glazing, Curtain Walling, Windows, Facade

Assix were appointed as Principal Contractor to complete this extensive facade refurbishment project for the University of Sheffield at their hexagonal Geography Building.

Read More →
Education
JCT, Live Environment, University of Sheffield, Principal Contractor, Innovative, Mechanical, Electrical, Glazing, Curtain Walling, Windows, Facade
UNIVERSITY OF SHEFFIELD | 9 NORTHUMBERLAND ROAD
Education
JCT, Live Environment, University of Sheffield, Reroofing, Re-Roofing, Principal Contractor, Innovative, Mechanical, Electrical
UNIVERSITY OF SHEFFIELD | 9 NORTHUMBERLAND ROAD
Education
JCT, Live Environment, University of Sheffield, Reroofing, Re-Roofing, Principal Contractor, Innovative, Mechanical, Electrical

Assix were appointed as Principal Contractor to complete the replacement of three large atrium rooflights for the University of Sheffield at the Hadfield CBE Building. The works were completed under the protection of weather tents while the building was occupied and involved extensive services works.

Read More →
Education
JCT, Live Environment, University of Sheffield, Reroofing, Re-Roofing, Principal Contractor, Innovative, Mechanical, Electrical
UNIVERSITY OF SHEFFIELD | BARTOLOME HOUSE RAILING REPLACEMENT & RETAINING WALL RECONSTRUCTION
Education
JCT, Live Environment, University of Sheffield, Principal Contractor, Innovative, Heritage Railings, External Decorations, Roofing Works, Heritage Brickwork, Masonry Remedials, Repointing, RC Concrete, Temporary Works, Traffic Mangement, Asphalt, Tarmac, Fencing, Drainage, Sash Window Repair, Scaffold
UNIVERSITY OF SHEFFIELD | BARTOLOME HOUSE RAILING REPLACEMENT & RETAINING WALL RECONSTRUCTION
Education
JCT, Live Environment, University of Sheffield, Principal Contractor, Innovative, Heritage Railings, External Decorations, Roofing Works, Heritage Brickwork, Masonry Remedials, Repointing, RC Concrete, Temporary Works, Traffic Mangement, Asphalt, Tarmac, Fencing, Drainage, Sash Window Repair, Scaffold

Assix were appointed as Principal Contractor to complete a project of cast-iron heritage railing replacements and reconstruction of a listed retaining wall at Bartolome House.

Read More →
Education
JCT, Live Environment, University of Sheffield, Principal Contractor, Innovative, Heritage Railings, External Decorations, Roofing Works, Heritage Brickwork, Masonry Remedials, Repointing, RC Concrete, Temporary Works, Traffic Mangement, Asphalt, Tarmac, Fencing, Drainage, Sash Window Repair, Scaffold
UNIVERSITY OF SHEFFIELD | BARTOLOME HOUSE ROOFLIGHTS
Education
JCT, Live Environment, University of Sheffield, Principal Contractor, Innovative, Listed Building, Rooflights, Roof Access, Lightning Protection, Masonry Remedials, Roofing
UNIVERSITY OF SHEFFIELD | BARTOLOME HOUSE ROOFLIGHTS
Education
JCT, Live Environment, University of Sheffield, Principal Contractor, Innovative, Listed Building, Rooflights, Roof Access, Lightning Protection, Masonry Remedials, Roofing

Assix were appointed as Principal Contractor to complete the replacement of three large atrium rooflights for the University of Sheffield at the Hadfield CBE Building. The works were completed under the protection of weather tents while the building was occupied and involved extensive services works.

Read More →
Education
JCT, Live Environment, University of Sheffield, Principal Contractor, Innovative, Listed Building, Rooflights, Roof Access, Lightning Protection, Masonry Remedials, Roofing
DERBYSHIRE POLICE | RIPLEY
Public Services
JCT, Live Environment, Reroofing, Principal Contractor, Innovative, Mechanical, Electrical, Foundations, Groundworks, Cladding, Scaffold, Screed, Gas Membrane, Windows, Doors, Cubicles, IPS Panelling, Suspended Ceilings, Partitions, Brickwork, Masonry, Steelwork, Drainage, Beam & Block Floor
DERBYSHIRE POLICE | RIPLEY
Public Services
JCT, Live Environment, Reroofing, Principal Contractor, Innovative, Mechanical, Electrical, Foundations, Groundworks, Cladding, Scaffold, Screed, Gas Membrane, Windows, Doors, Cubicles, IPS Panelling, Suspended Ceilings, Partitions, Brickwork, Masonry, Steelwork, Drainage, Beam & Block Floor

Assix were appointed as Principal Contractor following a competitive tender process to construct a new locker building for Derbyshire Police within the grounds of Ripley Police Station.

Read More →
Public Services
JCT, Live Environment, Reroofing, Principal Contractor, Innovative, Mechanical, Electrical, Foundations, Groundworks, Cladding, Scaffold, Screed, Gas Membrane, Windows, Doors, Cubicles, IPS Panelling, Suspended Ceilings, Partitions, Brickwork, Masonry, Steelwork, Drainage, Beam & Block Floor
UNIVERSITY OF SHEFFIELD | HADFIELD CBE BUILDING
Education
JCT, Live Environment, University of Sheffield, Reroofing, Re-Roofing, Principal Contractor, Innovative, Icopal, Weather Tents, Mechanical, Electrical
UNIVERSITY OF SHEFFIELD | HADFIELD CBE BUILDING
Education
JCT, Live Environment, University of Sheffield, Reroofing, Re-Roofing, Principal Contractor, Innovative, Icopal, Weather Tents, Mechanical, Electrical

Assix were appointed as Principal Contractor to complete a large re-roofing project for the University of Sheffield at the Hadfield CBE Building. The complex works involved detailed phasing to maintain critical plant services within the building while facilitating the works.

Read More →
Education
JCT, Live Environment, University of Sheffield, Reroofing, Re-Roofing, Principal Contractor, Innovative, Icopal, Weather Tents, Mechanical, Electrical
UNIVERSITY OF SHEFFIELD | BROAD LANE
Education
Office, JCT, Live Environment, Teaching Spaces, University of Sheffield, Reroofing, Re-Roofing, Principal Contractor, Craneage, Innovative, Roof Lights
UNIVERSITY OF SHEFFIELD | BROAD LANE
Education
Office, JCT, Live Environment, Teaching Spaces, University of Sheffield, Reroofing, Re-Roofing, Principal Contractor, Craneage, Innovative, Roof Lights

Assix were appointed as Principal Contractor following a competitive tender process to carry out re-roofing to the Broad Lane Block housing the University’s Civil and Structural Engineering Department. The works were carried out above and within live teaching environments which required meticulously planned operations to complete the works safely and with minimal disruption. £600,000 project completed over 16 weeks.

Read More →
Education
Office, JCT, Live Environment, Teaching Spaces, University of Sheffield, Reroofing, Re-Roofing, Principal Contractor, Craneage, Innovative, Roof Lights
AQUARIUS HOUSE | BRADFORD
Office & Commercial
Car Parks, Office, Commercial, Construction Management, JCT, Live Environment
AQUARIUS HOUSE | BRADFORD
Office & Commercial
Car Parks, Office, Commercial, Construction Management, JCT, Live Environment

Assix provided a full Construction Management service on this £325k car park extension & reconfiguration project for Univar & Ventgrove. The works in Bradford comprised extensive surface water drainage alongside new surfacing and electric vehicle charging point provision.

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Office & Commercial
Car Parks, Office, Commercial, Construction Management, JCT, Live Environment
PORTER GREEN | SHEFFIELD
Residential
New Build, Mixed Use, Residential, Brownfield, JCT, Construction Management, Demolition, Remediation
PORTER GREEN | SHEFFIELD
Residential
New Build, Mixed Use, Residential, Brownfield, JCT, Construction Management, Demolition, Remediation

Assix completed Pre-Construction & Enabling Works Management Role for this £10m New Build Residential Project. Including development of project cost plan, programme & management of demolition and site remediation works.

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Residential
New Build, Mixed Use, Residential, Brownfield, JCT, Construction Management, Demolition, Remediation
ARGYLE HOUSE | WILMSLOW
Office & Commercial
Office, Commercial, JCT, Live Environment
ARGYLE HOUSE | WILMSLOW
Office & Commercial
Office, Commercial, JCT, Live Environment

Assix carefully delivered this office refurbishment project for an international chemical distributer in Wilmslow, Manchester.

Read More →
Office & Commercial
Office, Commercial, JCT, Live Environment
DEACON HOUSE | SHEFFIELD
Office & Commercial
Enabling Works, Office, Commercial, Concrete Repairs, Roof Repairs, Window Refurbishment, Strip Out
DEACON HOUSE | SHEFFIELD
Office & Commercial
Enabling Works, Office, Commercial, Concrete Repairs, Roof Repairs, Window Refurbishment, Strip Out

Shell & Core Refurbishment of an 8 storey, 37,000 sq/ft city centre office building. Including roof repair, window refurbishment and concrete facade repairs.

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Office & Commercial
Enabling Works, Office, Commercial, Concrete Repairs, Roof Repairs, Window Refurbishment, Strip Out
NETWORK RAIL | MANCHESTER PICCADILLY
Rail
Sub-Contractor Support Services, Rail, London Underground Limited, Temporary Works, Project Management, Estimating, Procurement
NETWORK RAIL | MANCHESTER PICCADILLY
Rail
Sub-Contractor Support Services, Rail, London Underground Limited, Temporary Works, Project Management, Estimating, Procurement

Assix provided sub-contractor support services to take the Network Rail brief and translate into safe and workable solution in a rail workshop environment. Assix also provided estimating, procurement and change control management.

Read More →
Rail
Sub-Contractor Support Services, Rail, London Underground Limited, Temporary Works, Project Management, Estimating, Procurement
LONDON UNDERGROUND | EALING COMMON
Rail
Sub-Contractor Support Services, Rail, London Underground Limited, Temporary Works, Project Management, Estimating, Procurement
LONDON UNDERGROUND | EALING COMMON
Rail
Sub-Contractor Support Services, Rail, London Underground Limited, Temporary Works, Project Management, Estimating, Procurement

Assix provided sub-contractor support services to take London Underground brief and translate into safe and workable solution in rail workshop environement.

Read More →
Rail
Sub-Contractor Support Services, Rail, London Underground Limited, Temporary Works, Project Management, Estimating, Procurement
NETWORK RAIL | NEWCASTLE STATION
Rail
Sub-Contractor Support Services, Rail, London Underground Limited, Temporary Works, Project Management, Estimating, Procurement
NETWORK RAIL | NEWCASTLE STATION
Rail
Sub-Contractor Support Services, Rail, London Underground Limited, Temporary Works, Project Management, Estimating, Procurement

Assix provided sub-contractor support services to take the Network Rail brief and translate into safe and workable solution in a rail workshop environment. Assix also provided estimating, procurement and change control management.

Read More →
Rail
Sub-Contractor Support Services, Rail, London Underground Limited, Temporary Works, Project Management, Estimating, Procurement
PARKSIDE | CHESTERFIELD
Residential
Home Extension, Refurbishment, Piling, Glazing, Heating, Landscaping
PARKSIDE | CHESTERFIELD
Residential
Home Extension, Refurbishment, Piling, Glazing, Heating, Landscaping

The installation of a single storey double gable extension to provide new kitchen and garden room with existing kitchen and dining room subject to refurbishment to open up existing space and create a large dining and entertaining area

Read More →
Residential
Home Extension, Refurbishment, Piling, Glazing, Heating, Landscaping

MEET THE TEAM

We are a small team of professionals with an extensive range of experience in the construction industry. Our shared goal is to deliver successful projects for our clients and earn their trust to work together time and again. Our senior staff have worked alongside each other for over 10 years. We have shared the highs and lows of delivering construction projects and believe this knowledge and our trust in each other is key to our success and future growth as a business. All our projects get the full support of our team and can draw from our extensive pool of knowledge to deliver the best results.

LEARN MORE ABOUT OUR TEAM……